So, Charles, you have to either look up the weight of one molecule of the metabolite or calculate it. Then you need to convert it to grams, and then to ppbs. Let us know what you find out.
Thanks Professor, I was going to ask more this morning...... I had been under the impression that most of the time we were talking about PPM or PPb, it was molecules......
Just one of many things I don't understand as well as I should!
Charles
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